Automatic lock for elevator-gates.



E. P. JOYCE.

AUTOMATIC LOCK FOR ELEVATOR GATES.

APPLICATION FILED NOV. 29, 1907.

Patented Sept. 28, 1909.

W/ TNESSES:

' locking liar. in sitle elevation.

v" "tti 1" enter sen:

IEDXVABD F. JOYCE, OE KANSAS C'i'll, KA

nssner.

Specification of Letters Patent.

Application filed November 29,- 1907. Serial No. we

T 0 all whom it may concern:

Be it known that I. Enwann l. Joye-n, a citizen of the Unitetl States. residing at Kansas (lily. in the rounty of lVyanttotte anti Hate of iiausas. have invented certain new antl useful improvements in Automatic limits for lllevatnrilates; and I (it) declare the l'ollmving to he a full. clear, and exact tlest-ription tnhthe intention, such as will enahle others shilletl in the art to which it appertains te make and use the same referenee being hatl to the accompanying than in and to the figures of reterenre lltililietl thereon, which form a part or? this specitieation. i

nily invention relates to an automatic lock for elevator gates, and has for its object to provitle a tlQ'VlCG of that class which will r-ttet'tually lock the gate to an elevator shatt- \\'hile the ear is ahore or below the floor upon which the gate is located, hut wl ieh i will autonmtiealty release the gate as the ear reaehes that floor, antil will resume its loelv in; position as the ear passes the floor.

A further ohjeet to provide the inn illOY'ctl tletails ui' trueture which will presently he fully tleseribetl antl pointed out in the eiaiins, reference being had to the ac t-ouupanying drawings forming part of this speeititration in which like reference numerals rel er to like parts throughout the sevrral views. antl in which;-

higure it is a view, in front elevation, of an elevator, a1" antl shaft easing equipped with my imprm'etl gate look. Fig. ll is a top plan view of same. Fig. Ill is an enlargetl View, in sitle elevation, of the lock inn bar frame. Fig. 1V is a erossseetion of same on the line IV-lV, Fig. Ill. Fig. V is an enlarged detail View of the inching hat, and releasing mechanism. Fig. VI is an enlarged letaii View of the releasing wheel. Fig. VII is a top plan View of same. Fig. VIII is an enlarged tlettail View of the Fig. IX is a top plan View of same.

- 1 '1 t r =-t@- 1 inferring more in tletai. 0 L itv Pu! indicates a portion of a matt casing, and

a portion of a tioor through which the elevator shaft extends. l kt lilptoil for travel in the shaft is an elevator ear etnnprising the platform 3 and sitle frames tilitlahly mountetl between the trout ot' the shaft casing antl battens 5, ('tllt'lOtl. therehy',

is a gate (5, ol any ortlinary type. Secured. to, anti projecting from gate (3, atone sirle, 1S

wanulitious the ten.-.ioh of l hlatle 7 on t if s a short. and has a an arm 3 which yontl the shaft t;

projectinghlatie Lethal. or rigidly seem-ml o the shaft. ea. is 2 "nine member h, in the top oft Wh' it tnei l), and revolul'ily mounted i buitl .-t are the rollers 10. the

are susptaitiet: the ritt'tlititi in a suitthe frame men"- "which min t and nels in i: against the mile s r0 anti 1.3 is a stittn'ig bar it), and 3 in one sute of said bar heart i8 is a flan a CUIYOL.

the opp t 20, which is provit its inner encl w. a cut out portion. On the shin frame of the elevator ear is a hrael 92., on which is IEYOlltlJl nio inteti a wheel 23., which is atlnpt tl for engagement with the sliding har bearing flange when the ear is atv or approaching the floor where the gate is hung. When in use, the gate elnsetl, thecarin 6 hein so ar "an tl as to rest heiow the rail flange of the slitlii bar. t nner l'iorinal iring "forces the .Slltllilg liar "L-iYWZli'il the sua so that the hearing; tiai it is in thepalh at he wheei on the car frat Elllti the rail flange rowers the re gate arm. is the elevator ear approaches the iioor upon hich the gate is loeatetl, the wheel 23 engages the hearing flange oi the sliding bar head and forces saitl har haehwardly against; the tension of spring; When the ear stops at the floor, the wheel will he in eontat-t with the cente of the hearing flange, and the hat foreea hack to the limit of i tra 'el. ll' hen in this p: ition the -s rai etl, the hlatle ll, of the grate arm thrtr h the cut out, portion ot' the sir. i

rail tlange 20 over the l'lliltlfl on the gate arm,

extending i a head )rojecting toward said ear and proso that should an attempt be made to raise the gate while the parts are in this position, i the blade 7 would strilce against the under 5 side of the flange 20, and hold the gate in its i closed position. As the weight ol the gate retains it in its elosed position, there is no g danger of the gate becoming displaced while i the car is passing a floor upon which it is 10- cated, as, while the sliding bar is forced outwardly as the ear passes, the spring immediately returns it to its locking position.

Having thus described my invention, what i I. claim as new therein, and desire to secure by Letters Patent is 1. The combination with an elevator ear: and suitable gate, of a slide 'l'rame permanently mounted adjacent to said gate, and comprising a pair of frame members, having facing grooves, a bar slidably mounted in the grooves in said frame amt having a jlange projecting between said frame memv bers, a spring adapted for yieldingly holding said bar toward the elevator shaft, means on said car for actuat g said bar, against the tension of said spring, and an arm on said gate adapted for holding engagement with said flange when the bar is in its extended position and for non-engagement therewith when the bar is moved back against: the tension of said spring.

2. The combination with an elevator car, a suitable gate, and a shaft casing, of a. slide frame mounted on said casing and compris v ing an upper and lower member havingiiio ing grooves, rollers mounted in said grooves, 1 a sliding bar mounted in said grooves and bearing against said rollers, said bar having I inner end and with a side flange having a 40 cut out portion, an end plate carried by said frame members, a spring carried by said plate and yieldingly retaining said bar toward said ear, in vans on said car for engaging said bearing Ilange, and an arm on said gate projecting in the direction of said bar said arm being provided with a blade adapted for engagement with the under face of the bar side flange and for passage through the cut out portion in said'flange,

substantially as and for the purpose set forth.

The combination with the shaft casing, elevator ra and a suitable gate, of a slide t'rame mounted on said casing adjacent to said gate, and comprising a pair of 0ppositely t'aeing grooved fran'ie members, a bar slidably mounted in the grooves in said slide frame, and havinga. member projecting between said frame members provided with a,

ram surface, a spring adapted for yieldingly' holding said bar-toward the elevator shaft, means on said ear for engaging said cam sur'l'are to slide back said bar against the tension o'l said spring, and a member on said gate. adapted for holding engagement with said bar when the bar is'in its extended position and for non-engagement therewith when the bar is moved back against the tension of said spring.

ln testimony. whereof I aliix my signature in presence ot two witnesses.

EIWVARD F. JOYCF. Witnesses:

(hi0. llonN,

Au'rnun (I. BROWN. 

